package com.moli.config;

import com.moli.filter.JwtAuthenticationTokenFilter;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.config.http.SessionCreationPolicy;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
import org.springframework.security.crypto.password.PasswordEncoder;
import org.springframework.security.web.AuthenticationEntryPoint;
import org.springframework.security.web.access.AccessDeniedHandler;
import org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter;

/**
 * @Author： XC
 * @Date： 2023-06-04 09:25
 * @Description： 安全配置类
 */

@Configuration
public class SecurityConfig extends WebSecurityConfigurerAdapter {

	@Override
	@Bean
	public AuthenticationManager authenticationManagerBean() throws Exception {
		return super.authenticationManagerBean();
	}

	@Autowired
	private JwtAuthenticationTokenFilter jwtAuthenticationTokenFilter;

	//认证失败处理器
	@Autowired
	AuthenticationEntryPoint authenticationEntryPoint;

	//授权失败处理器
	@Autowired
	AccessDeniedHandler accessDeniedHandler;


	@Override
	protected void configure(HttpSecurity http) throws Exception {
		http
				//关闭csrf
				.csrf().disable()
				//不通过Session获取SecurityContext
				.sessionManagement().sessionCreationPolicy(SessionCreationPolicy.STATELESS)
				.and()
				.authorizeRequests()
				// 对于登录接口 允许匿名访问
				.antMatchers("/login").anonymous()
				//注销接口需要认证才能访问
				.antMatchers("/logout").authenticated()
				.antMatchers("/link/getAllLink").authenticated()
				.antMatchers("/user/userInfo").authenticated()
//                .antMatchers("/upload").authenticated()
				// 除上面外的所有请求全部不需要认证即可访问
				.anyRequest().permitAll();

		//配置异常处理器
		http.exceptionHandling()
				.authenticationEntryPoint(authenticationEntryPoint)
				.accessDeniedHandler(accessDeniedHandler);

		//关闭默认的注销功能
		http.logout().disable();
		//把jwtAuthenticationTokenFilter添加到SpringSecurity的过滤器链中
		http.addFilterBefore(jwtAuthenticationTokenFilter, UsernamePasswordAuthenticationFilter.class);
		//允许跨域
		http.cors();
	}

	@Bean
	public PasswordEncoder passwordEncoder(){
		return new BCryptPasswordEncoder();
	}
}